Controlling device for internal-combustion engines.



E. D. KBNDALL.

y GONTROLLING-DEVIGE FOR INTERNAL GOMBUS'TION ENGINES.V

APPLICATION FILED NOV. 23, 1912.

Patented Sept. 9; 1913.

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j T all whom t may concern.'

UNITED s'rAfrEs Pagani? OFFICE.

EDWARD DWIGHT KENDALL, OF ELIZABETH, 'li EW JERSEY, ASSIGNOR OFl ONE-FOURTH T0 FRANK M. ASHLEY, OF BROOKLYN, NEW YORK, AND ONE-FOURTH TO DICKSON l Q. BROWN, OF NEW YORK, N. Y.

CONTROLLING DEVICE FOR, INTERNAL-COMBUSTION ENGINES.

Be it known that I, EDWARD DWIGHT KENDALM a citizen ofthe United States,

and a resident of Elizabeth, in the county of Union and State of ,New Jersey, have invented certain new and useful Improvements in Controlling Devices for Internal- Combustion Engines, of which the following is a specification. Y

This invention relates to thermally controlled adjusting devices, particularly to devices of vthis character for adjusting the element .which controls the admission of fuel in internal combustion engines.

It has been found in internal combustion engines that after the engine is started using a light volatile combustible liquid such as gasolene as fuel, and has become heated up, it is possible to continue torun the engine on a heavier liquid fuel such as kerosene, heavy naphtha, crude oil, etc. This liquid is vaporized in a suitable manner as by being passed through a tube exposed to the heat of the gases of combustion and after being so vaporized it may be used in exactly the same manner as the more volatileV liquid such as gasolene on which the engine has been started.

Various thermally controlled electrical devices have been hitherto devised for turning ofl' the gasolene and turning on the heavier oil when the engine has become suiliciently heated up. Such devices have the drawback of requiring delicate adjustment, as they depend in their action upon the expansion of a metal or the difference' of the rate of expansion in different metals. Moreover, electrical devices involve the employment of a source of current which is often unreliable as the battery 'may become runv down or polarized or injured, the conductors may become broken or disconnected from the jarring of the motor or vehicle, the contacts may become soiled and any one of the comparatively large number of links con-l Specication of Letters Patent.

Application led November 23, 1912.

.of combustion.

Patented Sept. 9, 1913.

Serial No. 733,032.

tached to a shaft extending into a receptacle which is located in a position to be directly affected by the gases of combustion of the engine. This shaft has projet-.tions immersed in a mass of easily fusible metal with which the receptacle is filled. VVl'icn the engine is cold. the metal is congealcd or frozen and the shaft is positively coupled to the receptacle, so that when the engine is first started, this receptacle is given a partial rotation until a projection extending therefrom hits a stop. The wheel may then continue to' rotate loose upon the shaft while the receptacle is maintained in its adjusted position. lVhen the engine has become sufficiently heated up, the fusible metal is melted, uncoupling the receptacle from the shaft. and a spring then returns the receptacle to its original position. This movenient or adjustment of the receptacle may be used to actuate the valve which controls the admission of fuel to the cylinder, so that when the engine is first started, the more volatile liquid will be turned on and after it has become'heated up, the heavier oil will he substituted instead.

In the accompanying drawing illustrating the invention Figure l is a vertical section through a preferred embodiment of the present invention. Fig. 2 is a diagrammatic plan view illustrating the connection of the part which is directly actuated by the shaft to the controlling valve. Fig. 3 is a sectional view illustrating the three-way controlling valve for admitting either gasolene or a heavier oil. Fig. Il is a section on line 4 4 of Fig. 1.

- The actuating element which is connected to a moving part of the engine may be conveniently a wheel l which is frictionally connected as by a frictional coupling 2 to a shaft 3 which is suitably journaled and extends into a receptacle 4. The latter is disposed with reference to the engine so as to be subjected to the action of the gases It may be located in the manifold `exhaust'or in a chamber which communicates with the cylinder, so as to allow the gases of combustion to pass thereextending from the receptacle and mounted engine.

loose upon the shaft. This sleeve has projecting therefrom an arm 8 which is free to move between stops 9 and .10. When the arm 8 strikes the stop 9, the sleeve and shaft are arrested and the wheel continues to rotate idly Aon thel shaft, the relative movement being permitted by the frictional coupling 2. The movement ofthis arm is transmitted to the valve adjusting element through any desired means, as a forked arm 11, having connected therewith a sector 12 which meshes with a larger sector 13 connected with the valve arm 15 through a rod 14.

When the engine has become warmed up suiiiciently to melt the fusible met-al, the receptacle 4 becomes uncoupled from the shaft, thus freeing the same therefrom and permitting the same to be rotated backward from its position of adjustment for admitting gasolene to the engine to a position in which a heavier oil is admitted to the engine.` This backward rotation is accomplished by a spring 16 which is fastened at one end 17 to a stationary part of the framework and at the other end 18 to the sleeve 7. The spring may be disposed in any desired positionas illustrated, the same is located in a recess 19 formed in the framework.

The controlling valve may conveniently consist of a plug 20 having a transverse duct 21 which registers at one end alternately with the ducts 22 and 23 which are connected to the gasolene and oil pipes respectively. At the opposite end, the duct 21 registers with a duct 24 connecting with the At the latter end of the duct 21, it is enlarged as at 25, so that it may always open into the duct 24 whether it be adjusted to register with the gasolene or the oil duct. To increase the radiating surface of the walls of the chamber 4, I have preferably constructed this chamber in annular form of sufficientwidth to permit movement of the projection 6, and I further corrugate the walls as clearly illustrated in Fig. 4.

It will be seen that I have provided a thermally controlled adjusting device which is simple in construction and certain in operation without the intervention of electrical means and its accompanying disadvanaside from that of engine regulation where it is desired to make an adjustment which is controlled by the heat which a body may contain. Y

Various modifications within the scope of the accompanying claims will occur to those skilled in the art and parts of the improvements may be obviously used Without the others.

Having thus described my invention, claim 1. In a device of the character described, a continuously movable actuating member, a regulating element, and thermally controlled means for controlling the operative connection between the actuating member and the regulating element.

2. In a device of they character described. d

an actuating member, a regulating element, and a yielding connection and a. separatethermally controlled connection between the actuating member and the regulating element. Y

In a. device of the character described.' an actuating member. a regulating element. and a yielding connection and a. separate thermally controlled connection between the actuating member and t-he regulating element, and means for moving the regulating element relative to the actuating element.

4. In a device of the character described, an actuating member, a regulating element, a thermally controlled coupling and a yieldable connection between the actuating member and the regulating element, and stops for limiting the movement of the regulating element.

5. In combination, a regulating element,

an actuating member, a receptacle, a fusible metallic substance in the receptacle, and means 4connected to said actuating member extending within the receptacle into the fusible substance, the physical state of the latter controlling the operative connection between the actuating member and the regulating element. l

6. In combination, a regulating element,

-a shaft, an actuating. member mounted thereon, a receptacle, a fusible substance in said receptacle, a projection from the shaft extending into the fusible substance, the physical state of the latter controlling the operative connection between the actuating member and the regulating element.

7. In combination, a regulating element, an actuating member, a receptacle, a fusible metallic substance in the receptacle, means connected to saidlactuating member extending within the receptacle into the fusible substance, the physical'state of the latter controlling the operative connection between the actuating member and the regulating element, and means for operating the regulating clement when disconnected from the actuating member.A

8. In combination, a regulating element, an actuating member, a receptacle, a fusible metallic substance in the receptacle, means connected to said actuating member extending within the receptacle into the fusible substance, the physical state of the latter controlling the operative connection between the actuating member and the regulating element,l and a yielding connection between the actuating member and the regulating element.

9. In combination, a regulating-element, a shaft, an actuating element mounted thereon, va receptacle, a fusible substance in said receptacle, a projection from the shaft extending into the fusible substance, the physical state of the latter controlling the operative 'connection between the actuating member and the regulating element, and a yielding connection between the actuating member and the regulating element.

10. In combination, a regulating element, a shaft, an actuating element mounted thereon, a receptacle, a fusible substance-in said receptacle, a projection from the shaft extending into the fusible substance, the physical state of the latter controlling the operative connection between the actuating member and the regulating element,. and a frictional connection between the actuating member and shaft.

11. In combination, a regulating element;

an actuating member, a receptacle, a fusible metallic substancein the receptacle, means connected to said actuating member extending within the 4receptacle into the fusible subst-ance, the physical state of the latter controlling the operative connection between the actuating member andthe regulating element, and a spring for returning the regulating element when disconnected from the actuating member.

12. In combination, a shaft, a wheel mounted thereon, a yielding connection between the wheel and shaft, a receptacle, a fusible substance therein, a projection from the shaft extending into said fusible substance, a regulating device, and a connection between said receptacle and said regulating device.

13. In combination, a shaft, a wheel mounted thereon, a yielding connection between the wheel and shaft, a receptacle, a fusible substance therein, a projection from the shaft ext-ending into said fusible substance, a regulating devicea connection between said receptacle and said regulating device, and means for actuating the receptacle when released from the shaft.

14. In combination, a shaft, a wheel mounted thereon, a frictional connection between the wheel and shaft, a receptacle, a fusible substance therein, a projection from the shaft extending into sald substance, a sleeve connected to the receptacle and extending over the shaft, an arm extending from the sleeve, and a spring'connected to the sleeve for actuating the same when uncoupled from the shaft.

15. In combination, a shaft, a Wheel mounted thereon, a frietional connection between the wheel and shaft, a receptacle, a fusible substancev therein, a projection from the shaft extending into said substance, a sleeve connected to the receptacle and .extending over the shaft, 'an arm extending from the sleeve, a spring connected to the sleeve for actuatin pled from the sha t, and stops for limiting the movement of the sleeve.

16. In combination, a regulating element,

an actuating member, a receptacle, a fusible metallic substance in the receptacle, and means connected to said actuating member extending within the receptacle into the fusible substance, the physical state of the the same when uncoulatter controlling the operative connection between the actuating member and the reg-v ulating element, the walls of the receptacle being corrugated to increase its radiating surface.

17. In combination, a shaft, an actuating element mounted thereon, an annular receptacle, a fusiblesubstance therein, an offset projection fromthe shaft extending within the receptacle into the fusible substance, a regulating element, the physicalstate of said substance controlling the connection between the shaft andthe regulating element.

Signed at New York city, in the county of New York, and State of New York, this 24th day of October A. D. 1912.

EDWARD DWIGHT KENDALL.'

Witnesses:

FRANK M. ASHLEY, GEORGE DoAN RUSSELL. 

